Drying and gas or vapor contact with solids – Apparatus – With apparatus using centrifugal force
Patent
1981-06-09
1982-12-28
Schwartz, Larry I.
Drying and gas or vapor contact with solids
Apparatus
With apparatus using centrifugal force
34115, 34155, 118 68, F26B 2112
Patent
active
043654258
ABSTRACT:
Apparatus for curing a bonded, air-permeable web. The apparatus includes drying means (16-26, 42, 48, 54, 56 and 80) for passing heated air at a predetermined temperature through the web 10 for a predetermined time. Means (128, 132, 134, 136, 150, 160, 164 and 166) are provided for generating a first signal representing the pressure drop, at a predetermined velocity, across the web 10 outside of the drying means (16-26, 42, 48, 54, 56 and 80). Means (68, 108 and 110) are also provided for generating a second signal representing the pressure drop across the web (10) inside the drying means (16-26, 42, 48, 54, 56 and 80). Means (120) responsive to the first and second generated signals control the velocity of the heated air passing through the web so as to maintain the pressure drop across the web 10 inside the drying means (16-26, 42, 48, 54, 56 and 80) equal to the pressure drop as measured by the means (128, 132, 134, 136, 150, 160, 164 and 166) for generating the first signal.
REFERENCES:
patent: 3371518 (1968-03-01), Keyes
patent: 4215489 (1980-08-01), McMahon, Jr.
patent: 4311037 (1982-01-01), Gotchel et al.
patent: 4326342 (1982-04-01), Schregenberger
Kane, Jr. John W.
Schwartz Larry I.
Scott Paper Company
Yamaoka Joseph H.
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